The Analysis Of Structural Mechanics And Stability Against Overturning Of The Aerial Work Truck

Aerial work truck is a kind of manned crane, it can send staff to specify height to complete it’s work contently, so it is widely used in the field of aerial work.It has the characteristics of highly safety performance and widely operating range. However, due to the unreasonable of design or manufacturing process, there will appear instability of structure strength and stiffness, or aerial work truck tipping phenomenon, causing serious damage, in view of the above problems, this paper has done the following research work :Firstly, In this paper, taking a telescopic arm aerial work truck as the research object, taking the ANSYS finite element analysis software as the research tools and taking the APDL to complete the development of the aerial work truck structure finite element analysis program. Including the finite element parametric modeling、Material attribute definition, applying boundary conditions, loading, analysis calculation and the post-processing.Secondly, Realized the structure statics analysis of the aerial work truck(including the stiffness analysis of whole machine and the strength analysis of down part)and resistive overturning stability analysis; Thirdly, at the same time we do the part of finite element analysis of the aerial work truck’s telescopic mechanism and theoretical calculation, verified the accuracy of the result and safety of the telescopic mechanism.Finally, Use the Visual Basic 6.0 develop the software of aerial work truck structure finite element. Realized the background call of finite element software, simplified the design of the product process, and made it convenient to engineering designer to operating the finite element analysis.The research contents of this paper, have great practical significance for the design and production of aerial work truck, reasonable optimization schemes proposed in this paper have been applied, and achieved the desired effect, and effectively improve the structural mechanics performance and stability against overturning.